Intraguild predation between Amblyseius swirskii and two native Chinese predatory mite species and their development on intraguild prey.
Intraguild predation between Amblyseius swirskii and two native Chinese predatory mite species and their development on intraguild prey.
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DOI：
10.1038/srep22992
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发表时间：
2016-03-14
影响因子：
4.6
通讯作者：
Xu X
中科院分区：
文献类型：
--
作者：
Guo Y;Lv J;Jiang X;Wang B;Gao Y;Wang E;Xu X
斯氏钝绥螨（Amblyseius swirskii）原产于地中海东部和东南部，是一种成功的粉虱生物防治剂。在这项研究中，我们研究了内集团捕食（IGP）之间的各个阶段的A。swirskii和中国两种植绥螨东方钝绥螨和加州新绥螨的各阶段。在没有粉虱卵作为外食饵的情况下，A. swirskii和A. orientalis和A. swirskii和N.在35种组合中分别有10种和20种观察到了californicus。当观察到IGP时，A. 70%和65%的中华按蚊以斯氏按蚊为团内捕食者; orientalis和N.加利福尼亚州捕食分别。这些结果表明A. swirskii是一个更具侵略性的内团捕食者相比，无论是A。orientalis或N.加利福尼亚州。当以粉虱卵为外群食饵时，A. swirskii和N. californicus的降低幅度较大，而A. swirskii和A.东方斯氏钝绥螨在两种异种捕食螨上均能完成发育，两种异种捕食螨在A.斯氏菌属A.可能的影响讨论了斯氏螨对中国捕食螨种群的影响。
Amblyseius swirskii, native to the east and southeast Mediterranean region, is a successful biological control agent of whiteflies. In this study, we investigated intraguild predations (IGP) between each stage of A. swirskii and each stage of two Phytoseiid species that occur in China, Amblyseius orientalis and Neoseiulus californicus. When there was no whitefly egg provided as the extraguild prey, IGP between A. swirskii and A. orientalis, and between A. swirskii and N. californicus, was observed in 10 and 20 out of 35 combinations, respectively. When IGP was observed, A. swirskii was the intraguild predator in 70% and 65% cases of A. orientalis and N. californicus predation, respectively. These results suggest that A. swirskii is a more aggressive intraguild predator compared to either A. orientalis or N. californicus. When whitefly eggs were provided as the extraguild prey, IGP between A. swirskii and N. californicus decreased greatly, but no significant decrease of IGP was observed between A. swirskii and A. orientalis. Amblyseius swirskii was able to complete development on both heterospecific predatory mites, and both heterospecific predatory mites completed their development on A. swirskii. Possible impacts that A. swirskii may have on local predatory mite populations in China are discussed.